1. An ultra-hyperbolic analogue of the Robinson-Kerr theorem

   • Victor Guillemin
   • Shlomo Sternberg

   OriginalPaper Pages: 1 - 6

2. The penrose transform and the topology of certain algebraic varieties

   • Anna Rosolini
   • Angelo Vistoli

   OriginalPaper Pages: 7 - 13

3. Relativistic scattering theory for long-range potentials of the nonelectrostatic type

   • Bernd Thaller

   OriginalPaper Pages: 15 - 19

4. On abelian solutions to the Yang-Mills-Higgs equations

   • Juan Mateos Guilarte

   OriginalPaper Pages: 21 - 29

5. On the Bäcklund transformations for the generalized hierarchies of compound MKdV-SG equations

   • Gu Chao-Hao

   OriginalPaper Pages: 31 - 41

6. Conformally Ricci-flat spacetimes admitting a Killing vector field parallel to the gradient of the conformal scalar field

   • N. Van Der Bergh

   OriginalPaper Pages: 43 - 47

7. Space echo

   • Bogdan Mielnik

   OriginalPaper Pages: 49 - 56

8. A proof of part of Haldane's conjecture on spin chains

   • Ian Affleck
   • Elliott H. Lieb

   OriginalPaper Pages: 57 - 69

9. Hidden symmetries and accidental degeneracy for a spin-1/2 particle in the field of a dyon

   • Eric D'hoker
   • Luc Vinet

   OriginalPaper Pages: 71 - 76

10. Identically conserved currents and their charges

    • Emilio D'emilio
    • Mihail Mintchev

    OriginalPaper Pages: 77 - 86